/*************************************************************************/ /*!
@Title          Power Management Functions
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@Description    Main APIs for power management functions
@License        Dual MIT/GPLv2

The contents of this file are subject to the MIT license as set out below.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

Alternatively, the contents of this file may be used under the terms of
the GNU General Public License Version 2 ("GPL") in which case the provisions
of GPL are applicable instead of those above.

If you wish to allow use of your version of this file only under the terms of
GPL, and not to allow others to use your version of this file under the terms
of the MIT license, indicate your decision by deleting the provisions above
and replace them with the notice and other provisions required by GPL as set
out in the file called "GPL-COPYING" included in this distribution. If you do
not delete the provisions above, a recipient may use your version of this file
under the terms of either the MIT license or GPL.

This License is also included in this distribution in the file called
"MIT-COPYING".

EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/ /**************************************************************************/
#ifndef POWER_H
#define POWER_H

#if defined(__cplusplus)
extern "C" {
#endif


/*!
 *****************************************************************************
 *	Power management
 *****************************************************************************/
 
typedef struct _PVRSRV_POWER_DEV_TAG_
{
	PFN_PRE_POWER					pfnPrePower;
	PFN_POST_POWER					pfnPostPower;
	PFN_PRE_CLOCKSPEED_CHANGE		pfnPreClockSpeedChange;
	PFN_POST_CLOCKSPEED_CHANGE		pfnPostClockSpeedChange;
	IMG_HANDLE						hDevCookie;
	IMG_UINT32						ui32DeviceIndex;
	PVRSRV_DEV_POWER_STATE 			eDefaultPowerState;
	PVRSRV_DEV_POWER_STATE 			eCurrentPowerState;
	struct _PVRSRV_POWER_DEV_TAG_	*psNext;
	struct _PVRSRV_POWER_DEV_TAG_	**ppsThis;

} PVRSRV_POWER_DEV;

typedef enum _PVRSRV_INIT_SERVER_STATE_
{
	PVRSRV_INIT_SERVER_Unspecified		= -1,	
	PVRSRV_INIT_SERVER_RUNNING			= 0,	
	PVRSRV_INIT_SERVER_RAN				= 1,	
	PVRSRV_INIT_SERVER_SUCCESSFUL		= 2,	
	PVRSRV_INIT_SERVER_NUM				= 3,	
	PVRSRV_INIT_SERVER_FORCE_I32 = 0x7fffffff

} PVRSRV_INIT_SERVER_STATE, *PPVRSRV_INIT_SERVER_STATE;

IMG_IMPORT
IMG_BOOL PVRSRVGetInitServerState(PVRSRV_INIT_SERVER_STATE	eInitServerState);

IMG_IMPORT
PVRSRV_ERROR PVRSRVSetInitServerState(PVRSRV_INIT_SERVER_STATE	eInitServerState, IMG_BOOL bState);



IMG_IMPORT
PVRSRV_ERROR PVRSRVPowerLock(IMG_UINT32	ui32CallerID,
							 IMG_BOOL	bSystemPowerEvent);
IMG_IMPORT
IMG_VOID PVRSRVPowerUnlock(IMG_UINT32	ui32CallerID);

IMG_IMPORT
PVRSRV_ERROR PVRSRVSetDevicePowerStateKM(IMG_UINT32				ui32DeviceIndex,
										 PVRSRV_DEV_POWER_STATE	eNewPowerState);

IMG_IMPORT
PVRSRV_ERROR PVRSRVSystemPrePowerStateKM(PVRSRV_SYS_POWER_STATE eNewPowerState);
IMG_IMPORT
PVRSRV_ERROR PVRSRVSystemPostPowerStateKM(PVRSRV_SYS_POWER_STATE eNewPowerState);

IMG_IMPORT
PVRSRV_ERROR PVRSRVSetPowerStateKM (PVRSRV_SYS_POWER_STATE ePVRState);

IMG_IMPORT
PVRSRV_ERROR PVRSRVRegisterPowerDevice(IMG_UINT32					ui32DeviceIndex,
									   PFN_PRE_POWER				pfnPrePower,
									   PFN_POST_POWER				pfnPostPower,
									   PFN_PRE_CLOCKSPEED_CHANGE	pfnPreClockSpeedChange,
									   PFN_POST_CLOCKSPEED_CHANGE	pfnPostClockSpeedChange,
									   IMG_HANDLE					hDevCookie,
									   PVRSRV_DEV_POWER_STATE		eCurrentPowerState,
									   PVRSRV_DEV_POWER_STATE		eDefaultPowerState);

IMG_IMPORT
PVRSRV_ERROR PVRSRVRemovePowerDevice (IMG_UINT32 ui32DeviceIndex);

IMG_IMPORT
IMG_BOOL PVRSRVIsDevicePowered(IMG_UINT32 ui32DeviceIndex);

IMG_IMPORT
PVRSRV_ERROR PVRSRVDevicePreClockSpeedChange(IMG_UINT32	ui32DeviceIndex,
											 IMG_BOOL	bIdleDevice,
											 IMG_VOID	*pvInfo);

IMG_IMPORT
IMG_VOID PVRSRVDevicePostClockSpeedChange(IMG_UINT32	ui32DeviceIndex,
										  IMG_BOOL		bIdleDevice,
										  IMG_VOID		*pvInfo);

#if defined (__cplusplus)
}
#endif
#endif /* POWER_H */

/******************************************************************************
 End of file (power.h)
******************************************************************************/
